HSPA+ had the potential to deliver internet on-the-go at 20Mbps or so, and we've seen rivaling technologies outpace it in the past few months. That said, real world speeds of 16Mbps ain't nothing to scoff at, and that's exactly the mark which Vodafone Portugal has hit in Lisbon. The carrier, in partnership with Ericsson, was said to be using HSPA+ 64QAM technology, which touts a theoretical maximum download speed of 21.6Mbps. We're even told that Voda believes the speeds could be pushed as high as 28.8Mbps with MIMO functionality, though there's no word given on when this stuff would be available to the general populace. Soon, please?